K18 Leave-In Molecular Repair Hair Mask – 4-Minute Treatment to Reverse Damage, Restore Strength & Shine

Repair damaged hair in just 4 minutes with K18 Leave-In Hair Mask. This breakthrough formula works on a molecular level to rebuild broken keratin chains caused by bleach, color, heat, and chemical services. Restores elasticity, shine, and smoothness from the first use. No rinse needed — just leave in and go. Healthier hair, fast.